Invention Grant
- Patent Title: Positive electrode active material for secondary battery and secondary battery using the same
- Patent Title (中): 用于二次电池的正极活性材料和使用其的二次电池
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Application No.: US13810506Application Date: 2011-07-25
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Publication No.: US09281519B2Publication Date: 2016-03-08
- Inventor: Makiko Uehara , Takehiro Noguchi
- Applicant: Makiko Uehara , Takehiro Noguchi
- Applicant Address: JP Kanagawa
- Assignee: NEC ENERGY DEVICES, LTD.
- Current Assignee: NEC ENERGY DEVICES, LTD.
- Current Assignee Address: JP Kanagawa
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-172317 20100730
- International Application: PCT/JP2011/066864 WO 20110725
- International Announcement: WO2012/014846 WO 20120202
- Main IPC: H01M4/485
- IPC: H01M4/485 ; H01M4/1315 ; H01M4/505 ; H01M4/525 ; H01M10/052
Abstract:
Provided is a lithium ion positive electrode active material for a secondary battery that can realize a high operating voltage and a high capacity while suppressing capacity drop with cycles by using a low-cost material. A positive electrode active material for a secondary battery, which is a lithium manganese composite oxide represented by the following general formula (I) Lia(MxMn2−x−yYy)(O4−wZw) (I) wherein in the formula (I), 0.5≦x≦1.2, 0
Public/Granted literature
- US20130136987A1 POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME Public/Granted day:2013-05-30
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